Charles B Winterble

US Patent:

D3925730, Mar 24, 1998

Filed:

Jan 30, 1997

Appl. No.:

D/065575

Inventors:

Timothy C. Repp - New Hartford CT
Wayne Nelson - Maynard MA
Lawrence G. Stanley - Templeton MA
Charles Winterble - Princeton MA

Assignee:

Simplex Time Recorder Company - Gardner MA

International Classification:

1005

US Classification:

D10106

US Patent:

61950114, Feb 27, 2001

Filed:

Oct 2, 1998

Appl. No.:

9/165485

Inventors:

Charles B. Winterble - Princeton MA
Rony R. Seyouri - Framingham MA

Assignee:

Simplex Time Recorder Company - Westminster MA

International Classification:

G08B 1710

US Classification:

340589

Abstract:

A fire detection system cross correlates the responses of a temperature and smoke sensing units to achieve early-detection characteristics. The system also performs threshold-type detection on the smoke obscuration, temperature, and rate of temperature rise. If any of the thresholds are surpassed, the same alarm condition will be set. As a result, the detection characteristics of the resulting detector can be no worse than the conventional threshold-only systems. The system advantageously, however, provides for the early detection of fires that satisfy the cross correlation characteristics. Thus, it achieves the best performance characteristics of both approaches.

US Patent:

58183264, Oct 6, 1998

Filed:

Jul 2, 1996

Appl. No.:

8/677339

Inventors:

Charles B. Winterble - Princeton MA
Rony R. Seyouri - Framingham MA

Assignee:

Simplex Time Recorder Company - Gardner MA

International Classification:

G08B 1710

US Classification:

34028605

Abstract:

A fire detection system cross correlates the responses of a temperature and smoke sensing units to achieve early-detection characteristics. The system also performs threshold-type detection on the smoke obscuration, temperature, and rate of temperature rise. If any of the thresholds are surpassed, the same alarm condition will be set. As a result, the detection characteristics of the resulting detector can be no worse than the conventional threshold-only systems. The system advantageously, however, provides for the early detection of fires that satisfy the cross correlation characteristics. Thus, it achieves the best performance characteristics of both approaches.

US Patent:

D3774600, Jan 21, 1997

Filed:

Dec 22, 1995

Appl. No.:

D/048797

Inventors:

Wayne Nelson - Maynard MA
Lawrence G. Stanley - Templeton MA
Charles Winterble - Princeton MA

Assignee:

Simplex Time Recorder Company - Gardner MA

US Classification:

D10106

US Patent:

D3834077, Sep 9, 1997

Filed:

Dec 22, 1995

Appl. No.:

D/048281

Inventors:

Timothy C. Repp - New Hartford CT
Wayne Nelson - Maynard MA
Lawrence G. Stanley - Templeton MA
Charles Winterble - Princeton MA

Assignee:

Simplex Time Recorder Company - Gardner MA

International Classification:

1005

US Classification:

D10106

US Patent:

D3883515, Dec 30, 1997

Filed:

Jan 30, 1997

Appl. No.:

D/065582

Inventors:

Timothy C. Repp - New Hartford CT
Wayne Nelson - Maynard MA
Lawrence G. Stanley - Templeton MA
Charles Winterble - Princeton MA

Assignee:

Simplex Time Recorder Company - Gardner MA

International Classification:

1005

US Classification:

D10106

US Patent:

57512183, May 12, 1998

Filed:

Jul 19, 1996

Appl. No.:

8/684947

Inventors:

Charles Winterble - Princeton MA
Wayne Nelson - Maynard MA
Lawrence G. Stanley - Templeton MA

Assignee:

Simplex Time Recorder Company - Gardner MA

International Classification:

G08B 2300

US Classification:

340693

Abstract:

A smoke detection unit has a detection chamber for sampling smoke from a surrounding environment. The detection chamber allows air circulation but is optically opaque. This configuration is typical of photoelectric smoke detectors, for example. A housing defines a window though which air from the environment circulates into and out of the detection chamber. The window's height is approximately the same as the chamber. A cage vane is positioned in the window and is configured as an inverted frustoconical member. An inner edge of the cage vane is spaced away from the chamber. The angled vane, along the other aspects of the unit's configuration, improves sensitivity by increasing smoke circulation through the chamber. This configuration guides the air currents typically created by fires at the ceiling so that the smoke flows easily into the detection chamber.

US Patent:

D3883523, Dec 30, 1997

Filed:

Jan 30, 1997

Appl. No.:

D/065600

Inventors:

Timothy C. Repp - New Hartford CT
Wayne Nelson - Maynard MA
Lawrence G. Stanley - Templeton MA
Charles Winterble - Princeton MA

Assignee:

Simplex Time Recorder Company - Gardner MA

International Classification:

1005

US Classification:

D10106